[4] In 2016, after competing at IBJJF World Championship in the juvenile blue belt division, winning gold in heavyweight and silver in the Absolute, Clay moved to Legacy Jiu Jitsu (an Ares Affiliate) in Anchorage, Alaska.

As a 16-year-old blue belt, Clay upset the bracket by winning 2017 ADCC Submission Grappling West Coat Trials.

[8] Mid-2018, Clay moved to Modesto, California to train under Samir Chantre and Osvaldo Moizinho at the Ares Jiu-Jitsu Team headquarters.

[12] At Fight 2 Win 143 in June 2020 she defeated World No-Gi super-heavy and open weight black belt champion Kendall Reusing via Split Decision.

[18] In May 2021 at Subversiv 5 taking place in Miami in May, Clay won the Superfight submitting Andressa Cintra with a kneebar,[19] a few weeks later Clay won silver at the Pan-American Championship then double gold at the 2021 Pan No-Gi with a 100% submission rate at both middleweight and in the absolute division, submitting Kendall Reusing in the openweight final.

[21] In April 2022 Clay participated in the ADCC West Coast Trials but lost on points to Amy Campo in the semi-final.

In September she was invited to compete at the 2022 ADCC World Championship replacing Carina Santi,[22] Clay lost on points to Amy Campo.

[23] At the 2022 Pan No-Gi taking place in October Clay won her weight and the openweight for the second year in a row after submitting all six of her opponent.